I've found an '88TII for sale here in tulsa. The owner said that when the plugs are new or cleaned the car runs great. But it will foul them out after about 4 tanks of gas. What could be causing this. I can buy the car for $750.00 the turbo is reworked great interior only 108K miles, new tires and breaks. What do you guys think could be wrong with the car. Also I have an '87 TII for parts (1ft dent in driver door).